Low or zero carbon technologies

8.2.11Electrical installation requirements

The electrical installation shall be in accordance with relevant regulations.

Electrical installations should comply with BS 7671 ‘Requirements for Electrical Installations’.

Where parallel electrical generation occurs, inverters should have a current Engineering Recommendation G83/2 type test certificate and comply with all other parts of ER G83/2 for standard installations. Larger installations should comply with ER G59/3-2.

The electrical installation should be capable of being isolated from all other electrical sources when required, for maintenance or testing.

LZC technologies which generate electricity and are connected to the mains should automatically disconnect when there is a mains power failure. This is to prevent them from feeding the network or local distribution system during a planned or unscheduled loss of mains supply. This is known as ‘islanding’.